Metal Roof Installation Guide

metal roofing

Is it time to upgrade your roof already? The installation of a metal roof will not only save you money in the long run but save you the time with constant repairs and upgrades. Should you choose to install metal roofing yourself you are going to need to know a few things before, and during the process. In this metal roof installation guide, we will discuss the metal roof materials and tools needed, the steps to be taken during installation, and a ‘how-to’ permitting DIY metal roof installation.

Prior to starting your DIY project there are a few things to do and to consider:

Safety warning sign for metal roofing installation

Safety is your number one concern. When figuring out how to introduce a metal rooftop, understanding security is the most significant advance.

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Gloves and goggles ought to be worn constantly to forestall injury. Make sure there are no electrical wires or low branches hanging over the rooftop.

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Secure your stepping stool/ladder at the base and at the purpose of rooftop contact. Test the stepping stool/ladder to be sure it won’t move under your weight.

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Wear proper safety shoes while participating in rooftop work and always remain aware of your surroundings.

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Choose the Right Roofing

There are a multitude of materials to choose from for your metal roof installation project. Be sure to research all of the available options beforehand to choose the right material for your home, make sure to read our comprehensive metal roofing types blog. Listed below are various options and a short blurb regarding each one.

Tin: This is the most common and affordable metal roofing choice. The downside is that it creates noise when it rains.

Copper: A copper metal roof is the nicest to look at but costs a pretty penny. However, it does withstand extreme weather and fire.

Aluminum: This choice is lightweight and rust proof but it does need to be painted often.

Steel: Another one to break the bank but be worth the investment.

Zinc: This metal roofing choice is not only long-lasting, but it is corrosion-resistant and recyclable

Materials Needed

Head to your local hardware store or supplier and check these items off of your list.

Tip: Try to call ahead to ensure the product is in stock as to make as few trips as possible to various store locations.

What You Need:

  • Claw hammer
  • Drip edge
  • Patches
  • Sealants
  • Drill, drill bit
  • Ladder (size depends on the size of your home)
  • A ruler
  • A marking pencil
  • Jigsaw or reciprocating saw
  • Pry bar
  • Silicone seal
  • Nails (1 ¼ sized nails)
  • Gutter accessories
  • Metal roofing shingles/pieces (make sure to have extra)
  • Safety/welding gloves
  • Safety glasses
  • Roof ventilation kit
  • 1-2+ people to help with the project

Step-By-Step Metal Roof Installation Guide

Step 1: Gear up and ensure all safety protocols are in place

  • Before you climb up the roof and start with the process, ensure that you are properly geared up with gloves and safety glasses. Ensure that you are wearing proper safety shoes with proper grip.
  • Do not take up this project on a rainy day as the surface is extra slippery.
  • Depending on the type and height of your roof, you can tie a safety harness to yourself.
  • Ensure that there is an external ladder attached to the roof at all times.

Step 2: Measure the roof

  • Do not remove the old metal roofing as yet.
  • Find out the length and width of the roof using measuring tools.
  • Take measurements of the slope of the roof by using a carpenter’s level and setting it on the underside of the attic rafter. Begin measuring the vertical distance (rise) from the 12-inch mark on the level (run). Take it all the way till the underside of the same attic rafter. Note: Calculate slope rise over run)
  • Then multiply the slope and area. The result will give you the complete square footage of the roof that requires installation.
  • While ordering roofing supplies, insure that you add 10-15 % for the waste.
Metal Roof Flashing Joists Installation

Step 3: Remove old roofing and fix the masonry of your roof

  • While removing the old roofing, start from the top of the roof and work your way along the descending length of your life making sure that metal panels along the underlayment and vents are properly taken out.
  • While extracting the old metal roofing, it is common for your roof structure to become uneven or get damaged. Make the masonry of your roof even before installing the new roof.
  • If you see any nail extracted out, hammer it down properly. Without this, your metal roof panels will not settle properly.
  • Check the sheathing beneath your roof and ensure that there is no damage. If you notice a damage, repair it before you install a new metal roof.
  • Install a good amount of roofing insulation on the surface. This protects your new roof as well as the base of your roof structure.
Coating for metal roof sidewall

Step 4: Install the edging

  • Just like the name suggests, edging refers to the outline of your roof. Use ¼ inches nails to install the metal eave flashing on the edges of your roof.
  • Ensure that the corner pieces are placed where the panels meet the bends at the edge of the roofing.
  • In case of gutters on the eaves, install the eave flashing in a way that it hangs over the gutter by ½ inch.
dream roof sample materials

Step 5: Install the main metal panel roofing

  • To start installing metal roofing, place the first panel in a way that it overlaps the edge by at least ½ an inch. Ensure that it is in a square to the roof line.
  • Ensure that the larger edge is placed in a way that the small edge the adjacent panel overlaps it.
  • While installing the screws, drill them vertically along every rib of the panel. Ensure that the first screw is nearly 7 inches from the bottom. The following screws should be running vertically and should be between 18 to 24 inches apart.
  • Ensure that the screws are tight enough but do not overtighten them. Also make sure that the washers under the screws are well sealed to the surface and are not wobbling or bulging out.
  • While placing the second panel, ensure that you run a silicon sealant bead along the inner sides of the short edge. The short lip of the panel should overlap the large lip. The silicon sealant will spread along and seal the panel. The silicone will spread and adhere, creating a seal.
  • Follow these steps for the other panels and continue till the entire roof is covered. Some metal panels might require cutting to fit the overall structure of the roof. Carefully use a metal saw for this process.
metal roofs

Step 6: Install vents (Thoroughly read the brochure with your roof ventilation kit)

  • Measure the vents and mark the area on the metal panels.
  • Use a skill saw to cut the outlined area.
  • Apply a sealant and put the vent on it’s position and then apply another layer of sealant to make the fixture sturdy.
  • Put a screw on the cover of the vent opening a screw into place.
Metal roof chimney flashing

Step 7: Instal flashing

  • Use proper flashing on the joints between two sections of your roof
  • Place the flashing in V-shape between the two ridges on the top of your roof.
  • Properly screw the flat edges and ensure that flashing overlaps the edge of the roof only by 1 inch. This will help redirect the water away.

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